220516981

素因数分解:

${\mathrm{31}}^1\times {\mathrm{137}}^2\times {\mathrm{379}}^1$

素因数の和:684

約数の個数: 12

約数和(自身を含む): 229909120

約数和(自身を除く): 9392139

約数列:

[1, 31, 137, 379, 4247, 11749, 18769, 51923, 581839, 1609613, 7113451, 220516981]

約数ペア:

[(1, 220516981), (31, 7113451), (137, 1609613), (379, 581839), (4247, 51923), (11749, 18769)]